<template>
  <view>
	  <view class="search-box">
	    <my-search @click="gotoSearch"></my-search>
	  </view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <!-- 循环渲染轮播图的 item 项 -->
      <swiper-item v-for="(item, i) in swiperList" :key="i">
          <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
            <!-- 动态绑定图片的 src 属性 -->
            <image :src="item.image_src"></image>
          </navigator>
      </swiper-item>
    </swiper>
	<view class="nav-list">
	  <view class="nav-item" v-for="(item, i) in navList" :key="i" @click="navClickHandler(item)">
	    <image :src="item.image_src" class="nav-img"></image>
	  </view>
	</view>
	<view class="floor-list">
	  <!-- 楼层 item 项 -->
	  <view class="floor-item" v-for="(item, i) in floorList" :key="i">
	    <!-- 楼层标题 -->
	    <image :src="item.floor_title.image_src" class="floor-title"></image>
		<view class="floor-img-box">
		  <!-- 左侧大图片的盒子 -->
		  <navigator class="left-img-box" :url="item.product_list[0].url">
		    <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
		  </navigator>
		  <!-- 右侧 4 个小图片的盒子 -->
		  <view class="right-img-box">
		    <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-show="i2 !== 0" :url="item2.url">
		      <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
		    </navigator>
		  </view>
		</view>
	  </view>
	</view>
	
	
  </view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
	export default {
		mixins: [badgeMix],
	  data() {
	    return {
	      // 1. 轮播图的数据列表，默认为空数组
	      swiperList: [],
		  navList: [],
		  floorList: [],
	    }
	  },
	  onLoad() {
	    // 2. 在小程序页面刚加载的时候，调用获取轮播图数据的方法
	    this.getSwiperList(),
		 this.getNavList(),
		  this.getFloorList()
	  },
	  methods: {
	    // 3. 获取轮播图数据的方法
	    async getSwiperList() {
	      // 3.1 发起请求
	      const { data: res } = await uni.$http.get('/api/public/v1/home/swiperdata')
	      // 3.2 请求失败
	      if (res.meta.status !== 200) {
	        return uni.showToast({
	          title: '数据请求失败！',
	          duration: 1500,
	          icon: 'none',
	        })
	      }
	      this.swiperList = res.message
	    },
		 async getNavList() {
		      const { data: res } = await uni.$http.get('/api/public/v1/home/catitems')
		      if (res.meta.status !== 200) return uni.$showMsg()
		      this.navList = res.message
		},
		async getFloorList() {
		  const { data: res } = await uni.$http.get('/api/public/v1/home/floordata')
		  if (res.meta.status !== 200) return uni.$showMsg()
		
		  // 通过双层 forEach 循环，处理 URL 地址
		  res.message.forEach(floor => {
		    floor.product_list.forEach(prod => {
		      prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
		    })
		  })
		
		  this.floorList = res.message
		},
		navClickHandler(item) {
		  // 判断点击的是哪个 nav
		  if (item.name === '分类') {
		    uni.switchTab({
		      url: '/pages/cate/cate'
		    })
		  }
		},
		gotoSearch() {
		  uni.navigateTo({
		    url: '/subpkg/search/search'
		  })
		}
	  },
	}
</script>

<style lang="scss">
	.search-box {
	  // 设置定位效果为“吸顶”
	  position: sticky;
	  // 吸顶的“位置”
	  top: 0;
	  // 提高层级，防止被轮播图覆盖
	  z-index: 999;
	}
swiper {
 height: 330rpx;

 .swiper-item,
 image {
   width: 100%;
   height: 100%;
 }
}
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;

  .nav-img {
    width: 128rpx;
    height: 140rpx;
  }
}
.floor-title {
  height: 60rpx;
  width: 100%;
  display: flex;
}
.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}

.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}
</style>
